18 inch repeating circle, by Troughton, engraved F5TO, 3 eyepieces 3 dark glasses, 1 plumb bob, 4 brass clips, 2 brass labels with chains, instrument is exhibited on stand with 3 levelling screws, circles are divided into twelths of a degree and read to 5" arc by vernier 18 inch repeating circle 1790-1826
Vertical repeating circle with stand of 8-inch diameter, with diagonal telescope and case (no key), by Troughton and Simms [RAS No. 39, Sheepshank No.13]. Presented to the Royal Astronomical Society in 1857 by Miss Anne Sheepshanks sister of the Rev. Richard Sheepshanks. Vertical repeating circle with stand of 8-inch diameter 1824-1855